While heading towards Cyllage City, Ash & Co. see a person who sells Pokémon escaping from Officer Jenny. This seller makes his money by capturing and selling the Pokémon, Vivillon, which has different appearances based upon where it was born. Ash & co. decide to help Jenny catch the seller. However, as they get on his trail, Ash finds a Scatterbug that the seller had discarded. Will Ash & co. manage to help stop this bad person?